echo "

> use runoob
switched to db runoob
> db
runoob
> db.runoob.insert({"name":"菜鸟教程"})
> use test
switched to db test
> db.createCollection("runoob")
{ "ok" : 1 }
> db.mycol2.insert({"name" : "菜鸟教程"})
> show collections
mycol2
>
"
echo " https://www.runoob.com/mongodb/mongodb-create-collection.html"

docker exec -it mongodb mongo
